European Archives of Oto-Rhino-Laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery|October 30, 2014
Zeitschrift Fur Kinderchirurgie : Organ Der Deutschen, Der Schweizerischen Und Der Osterreichischen Gesellschaft Fur Kinderchirurgie = Surgery in Infancy and Childhood|October 1, 1986
European Archives of Oto-Rhino-Laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery|October 30, 2014
Zeitschrift Fur Kinderchirurgie : Organ Der Deutschen, Der Schweizerischen Und Der Osterreichischen Gesellschaft Fur Kinderchirurgie = Surgery in Infancy and Childhood|October 1, 1986